【作者】 陈建宗；

【导师】 周伟； 王元庆；

【作者基本信息】 长安大学 ， 交通运输规划与管理， 2008， 硕士

【摘要】 在我国各地城市积极实施公交优先战略之际,BRT作为一种经济、高效的大(中)运量的公共交通模式已得到了普遍关注和积极探索,但在BRT信号交叉口优先通行技术方面的研究却有所欠缺,本文在现有公交优先研究的基础上,针对BRT信号交叉口的安全性和通行效率问题,研究了BRT在空间上和时间上的优先设计方法。本文首先根据BRT信号交叉口的特征和优化设计目的,分析了引入BRT所引起的安全性和通行效率问题,并提出针对这些问题的BRT优先技术研究框架,分析了BRT优先的必要性、设计方法及比选准则。接着研究了BRT交叉口空间优先设计方法及比选,并通过设置不同情形提出BRT空间优先技术组合方法,以某市BRT规划1号线的某交叉口为例,应用了BRT空间优先技术。针对现有公交被动优先方法存在的问题,提出了采用HCM2000延误模型的BRT被动优先改进方法,并例证了有效性。通过假设各个流向的车辆到达服从D/D/1的均匀分布,研究了BRT绿灯提前和绿灯延迟两种主动优先控制方法的配时调整对BRT优先相位、非优先相位和整个交叉口的延误变化影响,并分析了主动优先配时调整的条件,而后对这两种方法进行基于VISSIM仿真,应用模块VISVAP编程,VAP语言编写相位切换程序。通过对比主动优先和固定配时的仿真结果表明,BRT主动优先能有效地减少BRT延误。更多还原

【Abstract】 As implementing transit first policy actively in Chinese cities, Bus Rapid Transit (BRT) as a costly and efficiently mass (or intermediate) transit mode has been paid comprehensive attention and been explored actively. However, there are some shortcomings at study on BRT priority technologies at signal intersection. So, based on literatures about transit priority in exist, this paper studys on the methods of spatial and temporal BRT priority technologies at signal intersection.Firstly, According to the characteristics and the goals of optimizing design of BRT signal intersction, the safety and efficiency problems as introduced BRT are analysed. And corresponding to these problems, the contents, need, design methods and selecting principles of BRT priority technologies are brought forward. Then, the design methods and selection of spatial BRT priority technologies are studied, and the methods of spatial technologies integration are provided by seting different cases. Taking one intersection of BRT corridor in some city as an example, the spatial technologies are applied. To solve the problems of transit signal passive priority methods, an improved method based on the delay model of HCM2000 is provided, and its validity is demonstrated by detail example. Assuming D/D/1 uniformly distributed vehicle input on every direction, the delay impact of early green and extended green to BRT phase, non-priority phase and whole intersection, and signal timing adjustive conditions of BRT active priority are analysed. Then, a microscopic simulation tool, VISSIM, is applied for analyzing the two strategies, using VISVAP module to program control logic and VAP language to program phase transition. Comparing the results of BRT active priority and fixed timing simulation, it is effective to reduce BRT delay by active priority strategies application.更多还原